Malicious PDF — malware analysis report

Static analysis result for SHA-256 40c29194d9567cf4…

MALICIOUS

PDF

33.9 KB Created: 2020-08-16 19:58:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 013e8bbf065f4c6211b88a5514aa16b8 SHA-1: 39dd506ed6f2a84e1c37f9495319cab9594c9bc5 SHA-256: 40c29194d9567cf410f578b08bd2130684024c7198c049a1d8be4e3c01e44b5d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a prominent link that directs to a malicious redirector, ttraff.com. This heuristic, combined with the ML classifier's high confidence score, indicates a malicious intent. The document body, though obfuscated, contains the same malicious URL and other URLs that appear to be part of a link farm, suggesting a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.com/pify?keyword=my+reflection+mulan+piano+sheet+music In PDF document text
    • http://xamobod.mymodernsolutions.ca/uploads/1/3/1/1/131164239/4197492.pdfIn PDF document text
    • http://gikedoj.beckmancheer.com/uploads/1/3/0/7/130776021/1a71c52ba.pdfIn PDF document text
    • http://files.cascadiancouriers.com/uploads/1/3/2/7/132740275/kuzerapumamixifete.pdfIn PDF document text
    • http://files.centraleuropeanstringquartet.com/uploads/1/3/2/3/132302888/5842109.pdfIn PDF document text
    • http://files.justinshatwell.com/uploads/1/3/1/6/131607163/mukev-mijuripob.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9161/6153/files/zebalajefefuvagiwuva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7620/6238/files/18019680758.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8999/3635/files/blender_video_editing_tutorials.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8482/3205/files/60583171235.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/4989/8399/files/francesco_petrarca_cancionero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8863/4263/files/vifabebabukusipumi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/48466687054.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7021/6597/files/debabufagu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1822/1730/files/xulenumu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8947/7273/files/average_worksheets_grade_5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2240/7064/files/79829219510.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/podufa.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000047e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47E6 5364 bytes
SHA-256: 41091694a2ebe8f5a3ebdf8ae741dcdb03142b78a50dd373ebd0f1722a44a7d8
font_01_sfnt_off000059fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59FE 9572 bytes
SHA-256: fccf372a7525fbd972a70a53532ed48ac1255db058e645974b7a75ed033469ff

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